Heated Mirrors (Service Information): Description
Vehicles equipped with electrically heated outside rear view mirrors (1) can be visually identified by the International Standards Organization (ISO) symbol for rear window defogger (2) on the mirror glass.
The heated mirror system operates in concert with the rear window defogger system, also known as the Electric Back Light (EBL) system, and is actuated by a momentary switch located in the Integrated Center Stack (ICS), or by using the control located in the Uconnect® touchscreen module. When the rear window defogger switch is pressed, the Heater, Ventilation and Air Conditioning (HVAC) module energizes the EBL relay in the rear Power Distribution Center (PDC), and fused battery current is directed to the rear window defogger grid lines and to the heated outside rear view mirrors. Heating the outside mirror glass helps clear the mirror surfaces of fog or frost.
An amber indicator lamp in the ICS illuminates when the EBL system is ON. The HVAC module contains the EBL system control circuitry, including the timer logic.
The EBL system turns OFF automatically after 10 minutes of initial operation. Each following activation cycle of the EBL system will last five minutes.
The EBL system automatically turns OFF after an initial programmed time interval of about 10 minutes, as long as the ignition is left in the RUN position. If the rear window defogger switch is pressed again after the initial time interval has expired, the EBL system will automatically turn OFF after about five minutes. The EBL system will also turn OFF if the ignition is set to any position other than RUN, or by manually pressing the rear window defogger switch a second time.
Circuit protection for the heated mirror system is provided by a fuse in the Body Control Module (BCM).